Gas Supply Piping; What To Do If You Smell Gas; General; Leak Check Gas Piping - Baxi LUNA DUO-TEC 60 GA Notice D'installation

7 - GAS SUPPLY PIPING

Fire, explosion, asphyxiation and burn hazard. Boiler piping and gas connections shall be leak tested before
placing boiler in operation. Failure to follow these instructions and or improper installation could result in death
or serious injury.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.

7.1 General

• Use piping materials and joining methods acceptable to authority having jurisdiction. In absence of such requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/NFPA 54
• Canada - Natural Gas and Propane Installation Code, CAN/CSA B149.1
• Install manual main shutoff valve before the gas valve accordance with state and local requirements.
• Size and install gas piping system to provide sufficient gas supply to meet maximum input at not less than minimum supply
pressure.
A. 1.48 GA requires a gas rate of 153 ft3/h (4.3 m3/h) for Gas A (Natural Gas) and 66 ft3/h (1.85 m3/h) for Gas E (Liquid
Propane Gas).
B. 60 GA requires a gas rate of 191 ft3/h (5.4 m3/h) for Gas A (Natural Gas) and 82 ft3/h (1.3 m3/h) for Gas E (Liquid
Propane Gas).
• Gas meter and supply pipes must be capable of delivering the listed quantity of gas in addition to demand from any other
appliances in the house. Boiler requires a 3/4" (19.5 mm) gas supply pipe.
• Support piping with hooks straps, bands, brackets, hangers, or building structure components to prevent or dampen excessive
vibrations and prevent strain on gas connection. Boiler will not support piping weight.
• Use thread (joint) compound (pipe dope) suitable for liquefied petroleum gas.
• Install external field sourced manual main gas shutoff valve, ground joint union, and sediment trap upstream of gas controls.
• Install boiler so gas ignition system components are protected from water dripping, spraying,rain, etc. During appliance
operation and service.
• Leak test boiler and gas line connections before placing boiler into operation.
Fire Hazard. Do not use matches, candles, open flames, or other methods providing ignition source. Failure to
comply WILL result in death or serious injury.
If overheating occurs or gas supply fails to shut off, do not turn off or disconnect the electrical supply to the
pump. Shut off gas supply at a location external to the appliance.
Do not use this boiler if any part has been under water. Call a qualified service technician before use.
Manufacturer requires an air vent be used to prevent condensate line vacuum lock.
Gas Supply Pressure
Natural Gas
Min. Max.
3.5" w.c. 10.5" w.c.
(0.87 kPa) (2.61 kPa)

7.2 Leak Check Gas Piping

Pressure test boiler and gas connection before placing boiler in operation.
• Pressure test over 1/2 psig (3.5 kPa). Disconnect boiler and its individual gas shutoff valve from gas supply system.
• Pressure test at 1/2 psig (3.5 kPa) or less. Isolate boiler from gas supply system by closing manual gas shutoff valve.
• Locate leakage using gas detector, noncorrosive detection fluid, or other leak detection method acceptable to authority
having jurisdiction. Do not use matches, candles, open flames, or other methods that can provide ignition source.
• Correct leaks immediately and retest.
If overheating occurs or gas supply fails to shut off, do not turn off or disconnect electrical supply to pump. Shut
off gas supply at location external to the boiler.
!
WARNING
!
CAUTION

WHAT TO DO IF YOU SMELL GAS

!
DANGER
!
WARNING
NOTICE
Propane
Min. Max.
8.0" w.c. 13.0" w.c.
(1.99 kPa) (3.23 kPa)
NOTICE
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240012485 REV A [12/30/2018]